It's true.
1. They've paid.
2. He's going for a concerted, hard-hitting tour of Oregon.
3. Obama is going to be the nominee.
So, ask yourself, if you are a "super", did you ever think that you'd see the day when Bill Clinton would actively go out and campaign against the nominee of the Democratic Party.
By the time Oregon votes, there will not be enough elected delegates for Hillary to catch up, even if she gets ALL the remaining ones, including Oregon's! In other words, if Obama died just before Oregon votes, and she got everything, she still would be behind.
#3 is not an exaggeration. The math is here (and here). It's compelling. So far, I've seen nothing from any commentator or news organization to point out how that computation is completely incorrect.
As for #2, here they are:
Marc Aronchick, Clarence Avant, Susie Tompkins Buell, Sim Farar, Robert L. Johnson, Chris Korge, Marc and Cathy Lasry, Hassan Nemazee, Alan and Susan Patricof, JB Pritzker, Amy Rao,
Lynn de Rothschild, Haim Saban, Bernard Schwartz, Stanley S. Shuman, Jay Snyder, Maureen White and Steven Rattner
Like others, they simply need to do their grieving for HIllary's loss, so that the party can get on with it.